NES 2.0 Mapper 299 is used for the TXC 6-in-1 multicart (MGC-023). Its UNIF board name is BMC-11160.
Mask: $8000
Bit 7654 3210
---------
M.PP ..CC
| || ++- Select 8 KiB (inner) CHR-ROM bank at PPU $0000-$1FFF
| ++------ Select 32 KiB PRG-ROM bank at CPU $8000-$FFFF, and 32 KiB (outer) CHR-ROM bank
+--------- Select nametable mirroring, 0=horizontal, 1=vertical
Categories: Multicart mappers